Sony Computer Entertainment America CEO Jack Tretton has become the second PlayStation executive to suggest that the company will struggle to make enough PS4 units to satisfy consumer interest.
After SCE CEO Andrew House warned last week that PS4 demand "may well outstrip supply", Tretton told Forbes:

"I certainly think, given the technology that we're offering, given the software lineup, given the price point we have, that we'll have consumers interested in excess of what we're able to manufacture."

Tretton said last week that GameStop executives had informed him the retailer would purchase "every single [PS4] unit" Sony can manufacture, adding: "We're excited about the momentum."

Hadn't seen anything on this... PS4 walked away with 38,984 votes while the Xbox One had 2,162 votes.

My guess is the reports PS4 outselling XBone 2-1 or 3-2 are misleading due to three things. The people who will buy both regardless, XBone fans willing to wait&see, and people not pre-ordering b/c they doubt they'll actually get a launch day console b/c of demand.